- Qingqingquan
- Shandong
- 20 days
- 300 units per month
NF systems remove 95% hardness while preserving beneficial minerals. 50% energy savings vs RO. Download free technical specifications today.
NF Nanofiltration Water Systems: 2025 Complete Guide
What is Nanofiltration?
1. Precision Filtration: Removes 0.001μm particles (between RO and UF)
2. Selective Removal:
• 95% hardness (Ca²⁺/Mg²⁺)
• 80-90% TDS reduction
• 99% organic matter >300Da
3. Low Pressure Operation: 50-70% energy savings vs RO
Industry Insight: NF systems achieve 30% higher flux rates than RO (AWWA 2023)
Key Technical Specifications
| Parameter | NF Performance | vs RO | vs UF |
|---|---|---|---|
| Pore Size | 0.001μm | 5x larger | 100x smaller |
| Operating Pressure | 5-15bar | 50% lower | 2x higher |
| Hardness Removal | 95% | Comparable | 40% |
| Organic Removal | 99% | Similar | 30% higher |
| Water Recovery | 85-90% | 10-15% higher | Comparable |
System Components
1. Pretreatment
• Multimedia Filter: 20μm particle removal
• Carbon Filter: Chlorine/organics adsorption
• Softener (optional): For high-hardness water
2. NF Membrane Array
✔ Spiral-wound elements
✔ FRP pressure vessels
✔ 304 stainless steel piping
3. Control System
• PLC automation
• Touchscreen HMI
• Cloud monitoring (optional)
5 Competitive Advantages
✅ 50% lower energy than comparable RO systems
✅ Mineral balance preservation - ideal for drinking water
✅ Compact footprint - 30% space savings
✅ Automated CIP cleaning - extends membrane life
✅ Silent operation - <60dB noise level
Industry Applications
1. Bottled Water Production
• Optimal mineral retention
• Meets GB 17324-2018 standard
2. Food & Beverage
• Sugar syrup concentration
• Dairy processing
3. Municipal Water
• Hardness reduction
• Disinfection byproduct removal
4. Wastewater Reuse
• Textile dye removal
• Landfill leachate treatment
Maintenance Protocol
🔧 Daily: Pressure/TMP monitoring
💧 Weekly: Flux rate verification
🧼 Monthly: Chemical cleaning
🔄 Annual: Membrane replacement
Pro Tip: Maintain 15% crossflow velocity to prevent fouling
Free Resources
📥 Download: "NF vs RO Comparison Guide"
💡 Get: Free System Design Consultation
